The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 2013
Filed:
Sep. 03, 2010
Shou-kuo Hsu, Taipei Hsien, TW;
Yung-chieh Chen, Taipei Hsien, TW;
Hsien-chuan Liang, Taipei Hsien, TW;
Wen-laing Tseng, Taipei Hsien, TW;
Shen-chun LI, Taipei Hsien, TW;
Chia-nan Pai, Taipei Hsien, TW;
Shou-Kuo Hsu, Taipei Hsien, TW;
Yung-Chieh Chen, Taipei Hsien, TW;
Hsien-Chuan Liang, Taipei Hsien, TW;
Wen-Laing Tseng, Taipei Hsien, TW;
Shen-Chun Li, Taipei Hsien, TW;
Chia-Nan Pai, Taipei Hsien, TW;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Abstract
A printed circuit board (PCB) includes two layers, two signal transmission traces, and a vertical interconnect access (via). The signal transmission traces are respectively arranged on the layers. The signal transmission traces are electrically connected to each other through the via. A centerline of the via with a vertical line of the layers form an acute angle θ, the angle θ is less than cos[(Lv−Lt)/(Lv+Lt)]. Wherein Lt is loss of the two signal transmitting traces in a unit length, and Lv is loss of the via in a unit length.